An integrated novel coronavirus antigen detection test kit

Abstract

The utility model belongs to the technical field of medical detection supplies, disclose a kind of integrated new crown virus antigen detection test paper reagent box, including sampling tube and detection tube, the inside of sampling tube is provided with sampling unit, the inside of detection tube is provided with detection unit, the lower end outer wall of sampling tube is equipped with first annular step, the lower end of sampling tube is inserted in the upper end inside of detection tube, the top of first annular step and the top of detection tube are fixedly connected by several frangible rods, the detection solution of the utility model is stored in the detection solution storage area between the diaphragm and silica gel duckbill check valve in sampling tube, not exposed in the rubber capsule, there is no risk that solution container breaks due to external extrusion when collecting sample, diversion groove is set on the surface of sharp, after puncturing diaphragm, mixed sample solution can flow along diversion groove quickly, avoid the situation that sharp and diaphragm breakage close contact block liquid passage.

Description

Technical Field

[0001] This utility model relates to the field of medical testing products technology, and in particular to an integrated COVID-19 antigen test strip kit. Background Technology

[0002] Chinese utility model patent CN219533167U discloses an integrated COVID-19 antigen test kit, including a sampling tube, a cotton swab, a sampling head, a test tube, and a test head. A first rubber bladder is connected to the sampling head, and a solution bag containing a test solution is placed inside the first rubber bladder. A flow guide hole is provided through the sampling head to connect the sampling tube and the first rubber bladder, so that the test solution flows into the sampling tube after the solution bag is ruptured. An installation hole for inserting a cotton swab is provided on the side of the sampling head facing the sampling tube. The end of the sampling tube away from the sampling head is sealed by a diaphragm. The test tube is transparent. A connector rod is connected to the test head, and a test strip is placed on the connector rod. A spike is provided on the end of the connector rod away from the test head, and a cotton ball connected to the test strip is provided on the connector rod.

[0003] The above-mentioned kit can reduce the occurrence of splashing of mixed solutions during the testing process and reduce the possibility of leakage of mixed solutions during medical waste disposal.

[0004] However, in actual use, there are still some shortcomings, such as: First, the solution bag is placed inside the first rubber bladder of the sampling head. When the sampling head is held and a cotton swab is used for sampling, the first rubber bladder may be accidentally squeezed, causing the solution bag to rupture and the entire kit to be scrapped. Second, its spikes adopt a smooth conical structure. When the spikes puncture the diaphragm, the outer wall of the spikes may come into close contact with the diaphragm, preventing the detection solution from entering the detection tube. This requires the sampling tube to be inserted and removed again, resulting in a poor detection experience. Third, in the initial state, the above-mentioned test kit requires the sampling tube and the test tube to be packaged separately, which increases the packaging cost significantly. During use, the packaging needs to be removed one by one and then reassembled, resulting in a long operation process.

[0005] Therefore, we propose an integrated COVID-19 antigen test strip kit. Utility Model Content

[0006] The purpose of this invention is to provide an integrated COVID-19 antigen test strip kit, thereby solving or at least alleviating one or more of the aforementioned problems and other issues existing in the prior art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include: An integrated COVID-19 antigen test kit includes a sampling tube and a detection tube, wherein the sampling tube contains a sampling unit and the detection tube contains a detection unit. The lower end of the sampling tube has a first annular step on its outer wall. The lower end of the sampling tube is inserted into the upper end of the detection tube. The top of the first annular step and the top of the detection tube are fixedly connected by several easily broken rods. A silicone duckbill one-way valve is fixedly connected to the lower end of the sampling tube, and a diaphragm is fixedly connected to the bottom of the sampling tube. The diaphragm and the silicone duckbill one-way valve form a detection solution storage area. The sampling unit includes an elastic rubber cap, and a cotton swab is fixedly connected to the bottom of the elastic rubber cap. The lower end of the cotton swab can be squeezed open under pressure and pass through the silicone duckbill one-way valve to enter the detection solution storage area. The detection unit includes a rectangular block, a test strip is fixedly connected to one side of the rectangular block, and a spike is fixedly connected to the top of the rectangular block.

[0008] In an integrated COVID-19 antigen test kit according to the present invention, an annular protrusion is integrally formed on the upper end of the inner wall of the sampling tube, and the bottom of the elastic rubber cap can press on the annular protrusion.

[0009] In an integrated COVID-19 antigen test strip kit according to the present invention, a guide slope is provided on the annular protrusion.

[0010] In an integrated COVID-19 antigen test strip kit according to the present invention, a second annular step is provided on the lower surface of the elastic rubber cap.

[0011] In an integrated COVID-19 antigen test strip kit according to the present invention, the surface of the spikes is provided with a flow channel.

[0012] In an integrated COVID-19 antigen test strip kit according to the present invention, a cotton ball is fixedly connected to the bottom of the spike, and the cotton ball is in contact with the test strip.

[0013] In an integrated COVID-19 antigen test strip kit according to the present invention, the diameter of the cotton ball is larger than the diameter of the spike.

[0014] In an integrated COVID-19 antigen test kit according to the present invention, a plurality of arc-shaped support plates are fixedly connected inside the test tube, and the rectangular block is fixed on the arc-shaped support plates.

[0015] In an integrated COVID-19 antigen test strip kit according to the present invention, an observation window is provided on the outer wall of the test tube.

[0016] In an integrated COVID-19 antigen test strip kit according to the present invention, both the outer wall of the sampling tube and the outer wall of the detection tube are provided with anti-slip texture.

[0017] This utility model has at least the following beneficial effects: The test solution is stored in the test solution storage area between the diaphragm inside the sampling tube and the silicone duckbill one-way valve, rather than in the exposed rubber bladder, so there is no risk of the solution container breaking due to external pressure when collecting samples; The swabs in the sampling unit are suspended and fixed by the elastic rubber cap supported by the annular protrusion on the inner wall of the sampling tube, and do not come into contact with the test solution storage area when not in use; and the silicone duckbill one-way valve has one-way conduction and only opens when the swab is actively pressed, which completely avoids the premature leakage of solution and accidental mixing of sample and solution during the sampling process, and prevents the reagent kit from being discarded prematurely due to solution problems.

[0018] The spikes have flow channels on their surface. After the diaphragm is punctured, the mixed sample solution can flow quickly along the flow channels, avoiding the situation where the spikes come into close contact with the ruptured diaphragm and block the liquid channel. The cotton ball is fixed at the bottom of the spike. The cotton ball adsorbs and evenly diffuses the solution through capillary action, and directly contacts the test strip to ensure that the solution is smoothly transferred to the test strip. Solution conduction can be completed without removing or inserting the sampling tube, which greatly improves the smoothness and experience of the detection operation.

[0019] The lower end of the sampling tube and the upper end of the detection tube are fixedly connected by several easily broken rods. The initial state is an integrated structure of sampling tube and detection tube, which does not require separate packaging and directly reduces packaging costs. When in use, simply rotate the sampling tube to break the fragile rod, and then push the sampling tube down to allow the spike to puncture the diaphragm, eliminating the assembly step, significantly shortening the operation process and improving detection efficiency; The entire testing process is free from leakage of testing liquid, effectively improving the safety of the test. After use, the sampling tube, detection tube, sampling unit and detection unit are integrated into one structure, thus avoiding liquid leakage during the same process. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a modeling diagram of the integrated COVID-19 antigen test strip kit of this utility model; Figure 2 This is a schematic diagram of the integrated COVID-19 antigen test strip reagent kit of this utility model; Figure 3 This is a cross-sectional structural diagram of the integrated COVID-19 antigen test strip kit of this utility model. Figure 4 for Figure 2 Enlarged diagram of part A in the diagram; Figure 5 for Figure 1 A magnified structural diagram of part B in the diagram; Figure 6 This is a schematic diagram of the structure of the spike of this utility model.

[0021] Explanation of icon numbers: 1. Sampling tube; 101. Annular protrusion; 2. Detection tube; 201. Observation window; 202. Arc-shaped support plate; 3. Sampling unit; 301. Elastic rubber cap; 3011. Second annular step; 302. Cotton swab; 4. Diaphragm; 5. Detection solution storage area; 6. Detection unit; 601. Rectangular block; 602. Test paper; 603. Spike; 6031. Flow guide groove; 604. Cotton ball; 7. Easily broken rod; 8. Silicone duckbill one-way valve. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Please refer to Figures 1 to 6 As shown, an embodiment of this utility model provides an integrated COVID-19 antigen test strip kit, including a sampling tube 1 and a detection tube 2. The sampling tube 1 is provided with a sampling unit 3 inside, and the detection tube 2 is provided with a detection unit 6 inside. The lower end of the sampling tube 1 has a first annular step on its outer wall. The lower end of the sampling tube 1 is inserted into the upper end of the detection tube 2. The top of the first annular step and the top of the detection tube 2 are fixedly connected by several easily broken rods 7. A silicone duckbill one-way valve 8 is fixedly connected to the lower end of the sampling tube 1, and a diaphragm 4 is fixedly connected to the bottom of the sampling tube 1. A detection solution storage area 5 is formed between the diaphragm 4 and the silicone duckbill one-way valve 8. The sampling unit 3 includes an elastic rubber cap 301, and a cotton swab 302 is fixedly connected to the bottom of the elastic rubber cap 301. The lower end of the cotton swab 302 can be squeezed open under pressure and pass through the silicone duckbill one-way valve 8 into the detection solution storage area 5. The detection unit 6 includes a rectangular block 601, a test strip 602 is fixedly connected to one side of the rectangular block 601, and a spike 603 is fixedly connected to the top of the rectangular block 601.

[0024] By adopting the above technical solution, several easily broken rods 7 pre-fix the sampling tube 1 and the detection tube 2 into an integrated structure, realizing the integrated storage of the reagent kit, which facilitates storage and transportation and avoids the loss of components. During the sampling stage, the user takes the sampling unit 3 out of the sampling tube 1 to take a sample. Then, the user holds the sampling tube 1 and applies downward pressure to the elastic rubber cap 301. The elastic rubber cap 301 drives the cotton swab 302 fixedly connected to its bottom to move downward synchronously. Under the pressure, the lower end of the cotton swab 302 squeezes open the silicone duckbill one-way valve 8 fixedly connected to the lower end of the sampling tube 1 and passes through the silicone duckbill one-way valve 8 into the detection solution storage area 5 formed between the diaphragm 4 and the silicone duckbill one-way valve 8, so that the sample collected on the cotton swab 302 and the detection solution storage area 5 are in contact. The test solution inside is fully mixed. During the testing phase, the user holds the test tube 2 and rotates the sampling tube 1, causing several easily broken rods 7 between the top of the first annular step and the top of the test tube 2 to break. The user continues to press down on the sampling tube 1, and the entire sampling tube 1 moves downward along the inside of the upper end of the test tube 2, causing the diaphragm 4 fixedly connected to the bottom of the sampling tube 1 to approach the test unit 6. The spikes 603 fixedly connected to the top of the rectangular block 601 of the test unit 6 pierce the diaphragm 4. The mixed sample solution flows from the test solution storage area 5 into the test tube 2 and comes into contact with the test strip 602 fixedly connected to one side of the rectangular block 601. The test is achieved through the antigen-antibody specific binding reaction. The silicone duckbill one-way valve 8 and the elastic rubber cap 301 can prevent the mixed solution from flowing back to the upper part of the sampling tube 1, ensuring the closedness of the testing process.

[0025] To prevent the sampling tube 1 from easily separating from the detection tube 2, an annular groove is provided on the lower outer wall of the sampling tube 1, and a sealing ring is provided in the annular groove. The outer wall of the sealing ring is in frictional sealing contact with the inner wall of the detection tube 2.

[0026] In this embodiment, an annular protrusion 101 is integrally formed on the upper end of the inner wall of the sampling tube 1, and the bottom of the elastic rubber cap 301 can press on the annular protrusion 101.

[0027] By adopting the above technical solution, the annular protrusion 101 integrally formed on the upper end of the inner wall of the sampling tube 1 forms a support and limiting structure. In the non-use state, the bottom of the elastic rubber cap 301 of the sampling unit 3 presses on the annular protrusion 101, which supports and positions the elastic rubber cap 301. This suspends and fixes the cotton swab 302, which is fixedly connected to the bottom of the elastic rubber cap 301, inside the sampling tube 1. This prevents the cotton swab 302 from prematurely contacting the silicone duckbill one-way valve 8 at the lower end of the sampling tube 1 and causing contamination. At the same time, it prevents the cotton swab 302 from entering the detection solution storage area 5 and mixing with the detection solution prematurely, thus ensuring the effectiveness of sampling and the stability of the detection solution.

[0028] In this embodiment, a guide slope is provided on the annular protrusion 101.

[0029] By adopting the above technical solution, the guide slope opened on the annular protrusion 101 forms a guide structure. When the user applies downward pressure to the elastic rubber cap 301, the bottom of the elastic rubber cap 301 slides along the guide slope of the annular protrusion 101. The guide slope reduces the frictional resistance during the downward movement of the elastic rubber cap 301, avoids the elastic rubber cap 301 getting stuck at the annular protrusion 101, and allows the elastic rubber cap 301 to move the cotton swab 302 downward more smoothly, ensuring that the cotton swab 302 passes smoothly through the silicone duckbill one-way valve 8, and improving the smoothness of operation.

[0030] In this embodiment, a second annular step 3011 is provided on the lower surface of the elastic rubber cap 301.

[0031] By adopting the above technical solution, the second annular step 3011 opened on the lower surface of the elastic rubber cap 301 forms a matching structure with the guide slope on the annular protrusion 101. When the elastic rubber cap 301 moves down, the inner wall of the second annular step 3011 slides against the guide slope. On the one hand, this further reduces the moving resistance. On the other hand, the cooperation between the second annular step 3011 and the guide slope restricts the radial displacement of the elastic rubber cap 301, ensuring that the elastic rubber cap 301 drives the cotton swab 302 to move straight down along the axial direction of the sampling tube 1. This avoids the cotton swab 302 failing to accurately pass through the silicone duckbill one-way valve 8 due to displacement. Moreover, when the top of the second annular step 3011 contacts the annular protrusion 101, it can effectively prevent the elastic rubber cap 301 from continuing to move down, preventing the cotton swab 302 from puncturing the diaphragm 4.

[0032] In this embodiment, the surface of the spike 603 is provided with a guide groove 6031.

[0033] By adopting the above technical solution, the flow channel 6031 opened on the surface of the spike 603 forms a liquid flow channel. When the spike 603 punctures the diaphragm 4, the mixed sample solution in the detection solution storage area 5 flows downward along the flow channel 6031 on the surface of the spike 603. The flow channel 6031 avoids the problem of stagnation caused by the sample solution only flowing in the gap between the spike 603 and the rupture of the diaphragm 4, increases the liquid flow rate, and ensures that the sample solution flows quickly and continuously to the test strip 602 of the detection unit 6, ensuring that the test strip 602 can be wetted by the sample solution in time.

[0034] In this embodiment, a cotton ball 604 is fixedly connected to the bottom of the spike 603, and the cotton ball 604 is in contact with the test strip 602.

[0035] By adopting the above technical solution, the cotton ball 604 fixedly connected to the bottom of the spike 603 serves as the liquid absorption and transfer medium. The sample solution flowing down along the guide groove 6031 is first adsorbed by the cotton ball 604. The cotton ball 604 uses its own capillary action to evenly diffuse the adsorbed sample solution. Since the cotton ball 604 is in direct contact with the test strip 602, the diffused sample solution is smoothly transferred to the test strip 602, avoiding direct impact of the sample solution on the test strip 602, which could cause damage to the detection area or excessively high local concentration. This ensures that the test strip 602 is evenly wetted and improves the accuracy of the test results.

[0036] In this embodiment, the diameter of the cotton ball 604 is larger than the diameter of the spike 603.

[0037] By adopting the above technical solution, setting the diameter of the cotton ball 604 to be larger than the diameter of the spike 603 can increase the contact area between the cotton ball 604 and the test strip 602, so that the sample solution adsorbed by the cotton ball 604 can more fully cover the reaction area of ​​the test strip 602, and avoid the test results being affected by the test strip 602 being partially unwetted due to the small contact area.

[0038] In this embodiment, several arc-shaped support plates 202 are fixedly connected inside the detection tube 2, and the rectangular block 601 is fixed on the arc-shaped support plate 202.

[0039] By adopting the above technical solution, a number of arc-shaped support plates 202 fixedly connected inside the detection tube 2 form a support and fixing structure, which firmly fixes the rectangular block 601 of the detection unit 6 on the arc-shaped support plate 202, realizing the precise positioning of the detection unit 6 inside the detection tube 2, avoiding displacement of the rectangular block 601 during transportation or detection operation, ensuring that the spike 603 at the top of the rectangular block 601 can be accurately aligned with the diaphragm 4 at the bottom of the sampling tube 1, and ensuring that the test strip 602 on one side of the rectangular block 601 is in the preset observation position; the arc-shaped structure of the arc-shaped support plate 202, while fixing the rectangular block 601, reserves space for liquid flow inside the detection tube 2, and will not obstruct the flow of sample solution to the test strip 602.

[0040] In this embodiment, an observation window 201 is provided on the outer wall of the detection tube 2.

[0041] By adopting the above technical solution, the observation window 201 set on the outer wall of the detection tube 2 provides a transparent window for observing the test results. The observation window 201 is set in accordance with the test strip 602 of the detection unit 6. Users can directly view the color development of the T line in the detection area and the C line in the quality control area on the test strip 602 through the observation window 201 without disassembling the detection tube 2. This avoids the contamination caused by the exposure of the sample solution during disassembly, and simplifies the test result reading steps, improving the ease of operation.

[0042] In this embodiment, both the outer wall of the sampling tube 1 and the outer wall of the detection tube 2 are provided with anti-slip texture.

[0043] By adopting the above technical solution, the anti-slip textured surfaces on the outer walls of sampling tube 1 and detection tube 2 increase the coefficient of friction between the hand and the tube walls. When the user performs operations such as pressing the elastic rubber cap 301, rotating sampling tube 1 to break the easily broken rod 7, or pressing sampling tube 1 downwards, the anti-slip texture effectively prevents hand slippage, allowing the user to hold sampling tube 1 and detection tube 2 more firmly. This ensures precise and controllable force application during operation and reduces the risk of operational errors or sample solution spillage due to slippage.

[0044] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An integrated COVID-19 antigen test strip kit, characterized in that, It includes a sampling tube (1) and a detection tube (2), wherein a sampling unit (3) is provided inside the sampling tube (1) and a detection unit (6) is provided inside the detection tube (2); The sampling tube (1) has a first annular step on its lower outer wall. The lower end of the sampling tube (1) is inserted into the upper end of the detection tube (2). The top of the first annular step is fixedly connected to the top of the detection tube (2) by several easily broken rods (7). A silicone duckbill one-way valve (8) is fixedly connected to the lower end of the sampling tube (1), and a diaphragm (4) is fixedly connected to the bottom of the sampling tube (1). A detection solution storage area (5) is formed between the diaphragm (4) and the silicone duckbill one-way valve (8). The sampling unit (3) includes an elastic rubber cap (301), and a cotton swab (302) is fixedly connected to the bottom of the elastic rubber cap (301). The lower end of the cotton swab (302) can be squeezed open under pressure and pass through the silicone duckbill one-way valve (8) into the detection solution storage area (5). The detection unit (6) includes a rectangular block (601), a test strip (602) is fixedly connected to one side of the rectangular block (601), and a spike (603) is fixedly connected to the top of the rectangular block (601).

2. The integrated COVID-19 antigen test strip kit according to claim 1, characterized in that: The upper end of the inner wall of the sampling tube (1) is integrally formed with an annular protrusion (101), and the bottom of the elastic rubber cap (301) can press on the annular protrusion (101).

3. The integrated COVID-19 antigen test strip kit according to claim 2, characterized in that: The annular protrusion (101) is provided with a guide slope.

4. The integrated COVID-19 antigen test strip kit according to claim 3, characterized in that: The lower end surface of the elastic rubber cap (301) is provided with a second annular step (3011).

5. The integrated COVID-19 antigen test strip kit according to claim 1, characterized in that: The surface of the spike (603) is provided with a guide groove (6031).

6. The integrated COVID-19 antigen test strip kit according to claim 5, characterized in that: A cotton ball (604) is fixedly connected to the bottom of the spike (603), and the cotton ball (604) is in contact with the test strip (602).

7. The integrated COVID-19 antigen test strip kit according to claim 6, characterized in that: The diameter of the cotton ball (604) is larger than the diameter of the spike (603).

8. The integrated COVID-19 antigen test strip kit according to claim 1, characterized in that: The detection tube (2) has several arc-shaped support plates (202) fixedly connected inside, and the rectangular block (601) is fixed on the arc-shaped support plates (202).

9. The integrated COVID-19 antigen test strip kit according to claim 1, characterized in that: The outer wall of the detection tube (2) is provided with an observation window (201).

10. A one-piece SARS-CoV-2 antigen test strip kit according to any one of claims 1-9, characterized in that: The outer walls of the sampling tube (1) and the detection tube (2) are both provided with anti-slip textures.

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